package com.caine.filter.filter;

import com.caine.common.entity.R;
import com.caine.common.tool.JSONTool;
import com.caine.filter.config.RsaKeyProperties;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;

/**
 * @Author: CaineZhu
 * @Description:
 * @Date: Created in 17:25 2021/1/7
 * @Modified By:
 */
public class TokenLoginFilter extends UsernamePasswordAuthenticationFilter {

    private AuthenticationManager authenticationManager;
    private RsaKeyProperties prop;

    public TokenLoginFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        this.authenticationManager = authenticationManager;
        this.prop = prop;
    }

   /* @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
        try {
            R ret = new ObjectMapper().readValue(request.getInputStream(), R.class);
            UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(sysUser.getUsername(), sysUser.getPassword());
            return authenticationManager.authenticate(authRequest);
        }catch (Exception e){
            try {
                response.setContentType("application/json;charset=utf-8");
                response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
                PrintWriter out = response.getWriter();

                out.write(JSONTool.toString(R.error("用户名或者密码错误")));
                out.flush();
                out.close();
            }catch (Exception outEx){
                outEx.printStackTrace();
            }
            throw new RuntimeException(e);
        }
    }

    public void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException {
        UserPojo user = new UserPojo();
        user.setUsername(authResult.getName());
        user.setRoles((List<RolePojo>)authResult.getAuthorities());
        String token = JwtUtils.generateTokenExpireInMinutes(user, prop.getPrivateKey(), 24 * 60);
        response.addHeader("Authorization", "Bearer "+token);
        try {
            response.setContentType("application/json;charset=utf-8");
            response.setStatus(HttpServletResponse.SC_OK);
            PrintWriter out = response.getWriter();
            Map resultMap = new HashMap();
            resultMap.put("code", HttpServletResponse.SC_OK);
            resultMap.put("msg", "认证通过！");
            out.write(new ObjectMapper().writeValueAsString(resultMap));
            out.flush();
            out.close();
        }catch (Exception outEx){
            outEx.printStackTrace();
        }
    }*/
}
